The innovative new Polymaker Polysher smoothing machine that changes how we see 3D Printed parts. The Polysher has an airtight design that creates an aerosol of isopropyl alcohol / ethanol which melts the surface of printed parts leaving behind a smooth surface.

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At Polymaker we always want to make 3D printing more useful; we want to see 3D printing in real-world applications rather than being used just to print useless trinkets. This has always been our core mission. We, therefore, challenged ourselves to solve this difficult problem. Today we are here with an affirmative answer. We are excited to introduce to you our latest innovation – PolySmooth PVB and Polysher – an entirely new solution to dramatically improve the surface quality of 3D printed parts. - Polymaker

The Technology

The polishing process involves exposing a 3D printed part of PolySmooth to an aerosol (a suspension of micro-sized droplets) of alcohol. The aerosol is generated by a unit in the Polysher called the nebulizer, which consists of a thin membrane with hundreds of tiny (< 10 microns) holes, attached to a piezoelectric actuator. When actuated, the nebulizer will generate a fine aerosol of micro-sized alcohol droplets, which will then adsorb onto the surface of the PolySmooth PVB 3D printed part and eventually make it smooth. Everything is done seamlessly and effortlessly in the Polysher.

Note: Polymaker do not recomend using other solvents / liquids other than Isopropyl Alcohol and Ethanol in the Polisher. Filling the Polysher resovoir with acetone and/or other unapproved liquids / solvents will damage the unit and void your warranty!

With the Polysher you can smooth parts up to a 15 cm x 18 cm (diameter x height) cylinder.

It is very simple to operate the Polysher:

3D print your part with PolySmooth, just like what you normally do with PLA

Place the printed part in the Polysher

Set the polishing time by turning the knob; a typical part takes 10 – 30 min (depending on part size & environmental conditions)

Once polishing is finished, the stage will automatically lift up for you to easily get the part

In addition, the liquid reservoir of the Polysher needs to be filled with alcohol. Suitable alcohols are:
- Isopropyl alcohol (also known as isopropanol)
- Ethanol with concentrations of no less than 70% (90% or higher recommended)
You can choose whatever is more easily available to you.